<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="UTF-8"/>
		<title>
			Document
		</title>
		<style>
		body{
			background-color: #f40;
		}
				@media screen and (min-width:768px){
					body{
					background-color:pink;
					}
			}
			@media screen and (min-width:992px){
				body{
				background-color:yellow;
				}
			}
			@media screen and (min-width:1200px){
				body{
					background-color:green;
				}
			}
			</style>
	</head>
	<body></body>
</html>
